CN113464138A - Coiled tubing water extraction equipment and process for non-extractable protective coal seam - Google Patents

Coiled tubing water extraction equipment and process for non-extractable protective coal seam Download PDF

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CN113464138A
CN113464138A CN202110852272.4A CN202110852272A CN113464138A CN 113464138 A CN113464138 A CN 113464138A CN 202110852272 A CN202110852272 A CN 202110852272A CN 113464138 A CN113464138 A CN 113464138A
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rotating wheel
mining
fixing
sledge
oil cylinder
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CN113464138B (en
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范晟昱
邵卉南
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Liaoning Coal Mining Products Manufacturing Co ltd
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Liaoning Coal Mining Products Manufacturing Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses continuous oil pipe hydraulic mining equipment and a process for an undrawable protective coal seam, which comprises an upper tunneling gate, a lower tunneling gate, an upper end head rotating wheel fixing pry, a lower end head rotating wheel fixing pry, a continuous oil pipe working system fixing pry, a high-pressure water system pry, a mining winch pry and a control system, wherein hydraulic devices capable of controlling and adjusting moving step distances are arranged at the upper end head and the lower end head of a working face, the control system controls two guide wheels to change the running direction, so that a high-pressure nozzle moves back and forth on the working face to continuously cut and crush coal bodies, the height of the guide wheels can be adjusted to mine coal seams with different thicknesses and different positions, water flow carries cut and crushed coal scraps bodies to the lower tunneling gate and is carried out by a scraper conveyor to release pressure of other adjacent coal seams, the purposes of preventing coal and gas outburst, impacting the ground and improving the coal seam extraction effect are achieved.

Description

Coiled tubing water extraction equipment and process for non-extractable protective coal seam
Technical Field
The invention belongs to the technical field of coal mine gas control, relates to coiled tubing water extraction equipment and a process for protecting a coal seam without mining thinness, and particularly relates to the technical field of pressure relief and permeability increase gas extraction of a large-area region of a coal seam with outburst and low air permeability of a coal mine and outburst prevention measures for preventing and controlling coal and gas outburst.
Background
In the outburst mine, how to adopt large-area outburst prevention measures is a difficult problem, the adoption of the area pre-pumping measures not only needs a certain amount of top or bottom rock roadways, but also needs a large amount of drilling engineering quantity, the space distance of the pumping and releasing drill holes of the mine with serious outburst is reduced to 5m, meanwhile, due to the outburst coal seam, the drilling is difficult, the long pre-pumping time is needed, the effect is not ideal, the protection layer measures are mined, the effect is good, the measure is a recognized most effective regional coal and gas outburst prevention measure, the outburst coal mine with the protection layer condition is also required by the current technical specification in China, the outburst prevention measures for mining of the protection layer must be implemented, however, for most of the outburst mines, the appropriate protection layer without outburst danger is difficult to find, but part of the outburst coal seams in China have thin protection coal seams which cannot be mined, the mining cannot be well implemented under the current mining technical conditions, the continuous oil pipe water mining equipment and the continuous oil pipe water mining process can solve the problems that a protective layer can not be mined and a mining protective layer protrudes out of a mine, and a high-gas mine which is difficult to pump and mine and has a thin coal layer which can not be mined and a large-area gas extraction problem can be solved.
Disclosure of Invention
In order to solve the problems, the invention provides coiled tubing water extraction equipment and a process for an unslotted protective coal seam, which are used for realizing the exploitation of the unslotted protective coal seam and simultaneously relieving the pressure of other adjacent coal seams so as to achieve the effects of preventing and controlling coal and gas outburst and improving the coal seam extraction effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the continuous oil pipe hydraulic mining equipment for the non-mining-thin protection coal seam comprises an upper tunneling gate way, a lower tunneling gate way, an upper end head rotating wheel fixing pry, a lower end head rotating wheel fixing pry, a continuous oil pipe working system fixing pry, a high-pressure water system pry, a mining winch pry and a control system, wherein the upper end head is a working face end with a higher elevation of a coal seam bottom plate, the lower end head is a working face end with a lower elevation of the coal seam bottom plate, an upper end head rotating wheel fixing pry fixing oil cylinder group is fixedly assembled on the outer wall of the upper end head rotating wheel fixing pry, the upper left side and the lower left side of the upper end head rotating wheel fixing pry are fixed in the upper tunneling gate way through the upper end head rotating wheel fixing pry fixing oil cylinder group, an upper end head rotating wheel is fixedly assembled on the left side of the front surface of the upper end head rotating wheel fixing pry, a continuous oil pipe working system fixing pry fixing oil cylinder group is fixedly assembled on the outer wall of the continuous oil pipe working system fixing pry, and the upper, lower, left and right sides of the continuous oil pipe working system fixing pry are fixed in the upper tunneling crossheading through a continuous oil pipe working system fixing pry fixing oil cylinder group, an upper end rotating wheel fixing pry traveling hydraulic cylinder is fixedly installed between the continuous oil pipe working system fixing pry and the upper end rotating wheel fixing pry, the front wall of the continuous oil pipe working system fixing pry is sequentially and fixedly provided with a continuous oil pipe driver, a continuous oil pipe coiler and an upper end motor, the upper end of the continuous oil pipe driver is fixedly provided with a continuous oil pipe driver hydraulic motor, the left end of the continuous oil pipe coiler is fixedly provided with a continuous oil pipe coiler hydraulic motor, the upper end of the continuous oil pipe coiler is fixedly provided with an upper end continuous oil pipe coiler hydraulic motor, and the output end of the upper end motor is fixedly provided with an upper end hydraulic pump, the front surface of the high-pressure water system pry is fixedly assembled with a high-pressure water supply system, the left end of the high-pressure water supply system is fixedly communicated with a high-pressure water pipe, the high-pressure water pipe is communicated with a continuous oil pipe through a hollow shaft of a continuous oil pipe coiler, the continuous oil pipe sequentially passes through a continuous oil pipe coiler, a continuous oil pipe driver and an upper end head rotating wheel, high-pressure hydraulic nozzles are fixedly communicated around the outer surface of the left lower end of the continuous oil pipe at intervals, a lower end head rotating wheel fixing pry fixing oil cylinder group is fixedly assembled on the outer wall of the lower end head rotating wheel fixing pry, the upper side, the lower side, the left side and the right side of the lower end head rotating wheel fixing pry are fixed in a tunneling lower crossheading through the lower end head rotating wheel fixing oil cylinder group, a lower end head rotating wheel is fixedly assembled on the left side of the front surface of the lower end head rotating wheel fixing pry, and a mining winch pry fixing oil cylinder group is fixedly assembled on the outer wall of the mining winch, the upper side, the lower side, the left side and the right side of the mining winch pry are fixed in a tunneling lower crossheading through a mining winch pry fixing oil cylinder group, a lower end rotating wheel fixing pry walking oil cylinder is fixedly assembled between the mining winch pry and a lower end rotating wheel fixing pry, a lower end low-speed mining winch disc and a lower end motor are fixedly installed on the front surface of the mining winch pry, a lower end low-speed mining winch hydraulic motor is fixedly assembled at the lower end of the lower end low-speed mining winch disc, a lower end hydraulic pump is fixedly installed at the output end of the lower end motor, a steel wire rope is wound on the outer surface of the lower end low-speed winch disc, the steel wire rope is connected with the left lower end of a continuous oil pipe after passing through a lower end rotating wheel, and a scraper conveyer is arranged inside the tunneling lower crossheading;
the control system comprises a PLC, a touch screen and an upper end and lower end voice call system, wherein the PLC is respectively electrically connected with a coiled tubing driver hydraulic motor, a coiled tubing winder hydraulic motor, an upper end coiled tubing coiler hydraulic motor, an upper end motor, a high-pressure water supply system, a lower end low-speed mining winch hydraulic motor, a lower end motor, the touch screen and the upper end and lower end voice call system, and the touch screen comprises an upper end touch screen and a lower end touch screen.
Furthermore, the upper end hydraulic pump provides hydraulic pressure for the fixed oil cylinder group of the fixed sled of upper end rotation wheel, the fixed sled walking hydraulic cylinder of the upper end rotation wheel, the fixed sled fixed oil cylinder group of the continuous oil pipe operating system, and the lower end hydraulic pump provides hydraulic pressure for the fixed sled fixed oil cylinder group of the lower end rotation wheel, the fixed sled walking hydraulic cylinder of the lower end rotation wheel, the fixed oil cylinder group of the mining winch sled.
Furthermore, an upper end rotating wheel height adjusting oil cylinder is fixedly assembled in a middle shaft inner cavity of the upper end rotating wheel, an upper end hydraulic pump provides hydraulic pressure for the upper end rotating wheel height adjusting oil cylinder, a lower end rotating wheel height adjusting oil cylinder is fixedly assembled in a middle shaft inner cavity of the lower end rotating wheel, and a lower end hydraulic pump provides hydraulic pressure for the lower end rotating wheel height adjusting oil cylinder.
Further, an upper end head distance adjusting oil cylinder is fixedly installed between the upper end head rotating wheel fixing pry and a bearing outer sleeve of the upper end head rotating wheel, a lower end head distance adjusting oil cylinder is fixedly installed between the lower end head rotating wheel fixing pry and a bearing outer sleeve of the lower end head rotating wheel, the strokes of the upper end head distance adjusting oil cylinder and the lower end head distance adjusting oil cylinder are equal, the strokes are lengths which are integral multiples (2-4 times) of a primary width distance (0.25-0.6 m), the bearing outer sleeve of the upper end head rotating wheel is inserted into a groove of the upper end head rotating wheel fixing pry, and the bearing outer sleeve of the lower end head rotating wheel is inserted into a groove of the lower end head rotating wheel fixing pry.
Further, the water extraction process of the coiled tubing water extraction equipment for the non-recoverable protected coal seam comprises the following steps:
firstly, fixing equipment, using a drilling machine to punch the working surface from the upper end head of the working surface of the tunneling upper crossheading, connecting a steel wire rope on the drilling head and pulling out a drill rod, connecting the steel wire rope with a continuous oil pipe provided with a high-pressure hydraulic nozzle, starting an upper end head motor to drive an upper end head hydraulic pump to work, using an upper end head rotating wheel fixing cylinder group to fix an upper end head rotating wheel fixing sledge in the tunneling upper crossheading from the upper side, the left side and the right side, using a continuous oil pipe working system fixing sledge fixing cylinder group to fix the continuous oil pipe working system fixing sledge in the tunneling upper crossheading from the upper side, the left side and the right side, enabling the upper end head rotating wheel fixing sledge and the continuous oil pipe working system fixing sledge to be spaced by a distance which is integral multiple (2-4 times) of the width distance once, starting a lower end head motor to drive a lower end head hydraulic pump to work, using a lower end head rotating wheel fixing sledge fixing cylinder group to fix a lower end head rotating wheel fixing sledge in the tunneling lower crossheading from the upper side, the left side and the right side and the left side, fixing the mining winch sleds in the tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using the mining winch sledge fixing oil cylinder group, and enabling the lower end head rotating wheel fixing sleds and the mining winch sleds to be spaced by a distance which is integral multiple (2-4 times) of the primary mining width distance;
and secondly, completing the water production work of one-time width distance mining of the length of the working face, adjusting the height of the upper end rotating wheel by using an upper end rotating wheel height adjusting oil cylinder, adjusting the height of the lower end rotating wheel by using a lower end rotating wheel height adjusting oil cylinder, starting a hydraulic motor of the upper end coiled tubing device to enable the coiled tubing device to work, and starting a hydraulic motor of the coiled tubing winder to enable the coiled tubing winder to workStarting a hydraulic motor of a coiled tubing driver to enable the coiled tubing driver to work, tensioning a steel wire rope to enable a high-pressure hydraulic nozzle on the coiled tubing to be located at an outlet position of a lower end head of a working surface, starting a hydraulic motor of a coiled tubing coiler at an upper end head to enable the coiled tubing coiler to work, suspending after tensioning the coiled tubing, confirming that the hydraulic production equipment is normal, starting a high-pressure water supply system, after a scraper conveyer arranged in a lower gate groove of the tunneling machine is started to work, a hydraulic motor of a winch for low-speed mining at a lower end head is synchronously started to enable a winch disc for low-speed mining at the lower end head to work, a hydraulic motor of a coiled tubing coiler at an upper end head is started to enable the coiled tubing coiler to work, the hydraulic motor of the coiled tubing coiler is started to enable the coiled tubing coiler to work, a hydraulic motor of a coiled tubing driver is started to enable the coiled tubing driver to work, and a high-pressure hydraulic nozzle is enabled to carry out hydraulic mining L from the lower end head to the upper end head.MiningAfter the distance is moved forward and the water production is carried out, the water production L is carried outMiningReverse movement of distance and water production, then 2L water productionMiningAfter the forward movement of the distance and the water extraction, the water extraction is carried out for 2LMiningReverse movement of distance, water extraction and 3L water extractionMiningAfter the forward movement of the distance and the water production, the water production is carried out for 3LMiningThe distance reverse movement and the water mining are continuously repeated until the water mining with the working face length of the width mining distance is completed once, and the water mining equipment is completely shut down;
thirdly, completing the hydraulic mining work of the length of the working face at a distance which is integral multiple (2-4 times) of the width distance of one mining, starting an upper end motor to drive an upper end hydraulic pump to work, using an upper end rotating wheel fixing oil cylinder group to fixedly release an upper end rotating wheel fixing sledge on the tunneling upper crossheading, using an upper end rotating wheel fixing sledge traveling hydraulic cylinder to pull the upper end rotating wheel fixing sledge to travel for a width distance, using an upper end rotating wheel fixing sledge fixing oil cylinder group to fix the upper end rotating wheel fixing sledge in the tunneling upper crossheading from the upper side, the lower end motor to drive a lower end hydraulic pump to work, using a lower end rotating wheel fixing oil cylinder group to fixedly release the lower end rotating wheel fixing sledge on the tunneling lower crossheading, using a lower end rotating wheel fixing sledge traveling oil cylinder to pull the lower end rotating wheel traveling oil cylinder to rotate the lower sledge for a width distance of one mining, fixing the lower end rotating wheel fixing sledges in the tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using the lower end rotating wheel fixing sledge oil cylinder group, repeating the second step and the third step to finish the mining of a working surface with a distance which is integral multiple (2-4 times) of the mining width distance, and completely stopping the hydraulic mining equipment;
fourthly, completing the hydraulic production work of the whole working face, starting an upper end motor to drive an upper end hydraulic pump to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group to fixedly detach the continuous oil pipe working system fixing sledge on the tunneling upper crossheading, using an upper end rotating wheel fixing sledge traveling hydraulic cylinder to push the continuous oil pipe working system fixing sledge to travel for a distance which is integral multiple (2-4 times) of the mining width distance, using the continuous oil pipe working system fixing sledge fixing oil cylinder group to fix the continuous oil pipe working system fixing sledge in the tunneling upper crossheading from the upper side, the lower side, the left side and the right side, using an upper end rotating wheel fixing sledge fixing oil cylinder group to fixedly detach the upper end rotating wheel fixing sledge on the tunneling upper crossheading, using the upper end rotating wheel fixing sledge traveling hydraulic cylinder to pull the upper end rotating wheel fixing sledge to travel for a mining width distance, using the upper end rotating wheel fixing sledge fixing oil cylinder group to fix the upper end rotating wheel fixing sledge from the upper side, the left side, the lower side, the left side and the right side and the four sides Starting a lower end motor to drive a lower end hydraulic pump to work, using a mining winch sledge fixing oil cylinder group to fix the mining winch sledge on the tunneling lower crossheading, using a lower end rotating wheel fixing sledge walking oil cylinder to push the mining winch sledge to walk for a distance which is integral multiple (2-4 times) of the mining width distance, using the mining winch sledge fixing oil cylinder group to fix the mining winch sledge in the tunneling lower crossheading from the upper side, the lower side and the left side, using the lower end rotating wheel fixing oil cylinder group to fix the lower end rotating wheel fixing sledge on the tunneling lower crossheading, using the lower end rotating wheel fixing oil cylinder group to pull the lower end rotating wheel fixing sledge to walk for a distance, using the lower end rotating wheel fixing oil cylinder group to fix the lower end rotating wheel fixing sledge in the tunneling lower crossheading from the upper side, the second step, the third step and the fourth step to finish the mining of the whole working face, then the water production equipment is shut down completely.
Furthermore, the oil cylinders of the fixed sledge fixed oil cylinder group, the upper end head rotating wheel fixed sledge fixed oil cylinder group, the lower end head rotating wheel fixed sledge fixed oil cylinder group and the mining winch sledge fixed oil cylinder group of the continuous oil pipe working system are manually controlled.
Further, the one-time width mining distance is 0.25-0.6 m, LMiningFor a practical length of water production, LMiningN is the number of times of water mining required for completing the length of the whole working face when water mining is carried out by using the primary water mining length L, and n is the length of the working face/L]。
And further, when the thickness of the coal seam is less than or equal to 0.5 m, the coal seam is mined for the first time, when the thickness of the coal seam is more than 0.5 m and less than 0.8 m, the coal seam is mined for the second time, and the first mining layer is the upper half part of the coal seam.
Further, the water extraction process of the coiled tubing water extraction equipment for the non-recoverable protected coal seam comprises the following steps:
firstly, fixing equipment, using a drilling machine to punch the upper end head of a working surface of an upper tunneling crossheading, connecting a steel wire rope on a drill bit to pull out a drill rod, connecting the steel wire rope with a continuous oil pipe provided with a high-pressure hydraulic nozzle, starting an upper end head motor to drive an upper end head hydraulic pump to work, using an upper end head rotating wheel fixing oil cylinder group to fix an upper end head rotating wheel fixing sledge in the upper tunneling crossheading from the upper side, the lower side, the left side and the right side, using a continuous oil pipe working system fixing sledge fixing oil cylinder group to fix the continuous oil pipe working system fixing sledge in the upper tunneling crossheading from the upper side, the upper end head distance adjusting oil cylinder stroke is the length of integral multiple (2-4 times) of one-time width distance, enabling the upper end head rotating wheel fixing sledge to be separated from the continuous oil pipe working system fixing sledge by the distance of integral multiple (2-4 times) of one-time width distance, and starting a lower motor to drive a lower end head hydraulic pump to work, fixing the lower end rotating wheel fixing sleds in the tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using a lower end rotating wheel fixing sledge cylinder group, fixing the mining winch sleds in the tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using a mining winch sledge fixing cylinder group, and enabling the stroke of a lower end head distance-adjusting cylinder to be the length of integral multiple (2-4 times) of one-time mining width distance so that the lower end rotating wheel fixing sleds and the mining winch sleds are spaced by the distance of integral multiple (2-4 times) of one-time mining width distance;
secondly, completing the hydraulic mining work of one-time mining wide distance of the working face length, adjusting the height of an upper end rotating wheel by using an upper end rotating wheel height adjusting oil cylinder, adjusting the height of a lower end rotating wheel by using a lower end rotating wheel height adjusting oil cylinder, starting an upper end continuous oil pipe coiler hydraulic motor to enable a continuous oil pipe coiler to work, starting a continuous oil pipe driver hydraulic motor to enable a continuous oil pipe driver to work, tensioning a steel wire rope to enable a high-pressure hydraulic nozzle on a continuous oil pipe to be located at the outlet position of the lower end of the working face, starting an upper end continuous oil pipe coiler hydraulic motor to enable the continuous oil pipe coiler to work, suspending after tensioning the continuous oil pipe, confirming that the hydraulic mining equipment is normal, starting a scraper conveyor arranged in a tunneling lower crossheading groove to work after a high-pressure water supply system is started, and synchronously starting a lower end low-speed mining winch hydraulic motor to enable a lower end low-speed mining winch disc to work, Starting a hydraulic motor of the coiled tubing device at the upper end head to enable the coiled tubing device to work, starting a hydraulic motor of the coiled tubing winder to enable the coiled tubing winder to work, and starting a hydraulic motor of the coiled tubing driver to enable the coiled tubing driver to work, so that the high-pressure hydraulic nozzle carries out water production L from the lower end head to the upper end headMiningDistance forward movement and water extraction, and then water extraction LMiningReverse movement of distance and water production, then 2L water productionMiningDistance forward movement and water extraction are carried out, and 2L water extraction is carried outMiningReverse movement of distance, water extraction and 3L water extractionMiningDistance forward movement and water extraction, and 3L water extractionMiningThe distance reverse movement and the water mining are continuously repeated until the water mining is finished after the working face is wide once and the water mining is finished, and the water mining equipment is completely shut down;
thirdly, completing the water mining work of the working face with the length of the integral multiple (2-4 times) of the width distance at one time, starting an upper end motor to drive an upper end hydraulic pump to work, using an upper end distance adjusting oil cylinder to pull a bearing outer sleeve of an upper end rotating wheel to enable the upper end rotating wheel to move for the width distance (0.25-0.6 m) at one time, using a lower end distance adjusting oil cylinder to pull a bearing outer sleeve of a lower end rotating wheel to enable the lower end rotating wheel to move for the width distance (0.25-0.6 m) at one time, and repeating the second step and the third step to complete the water mining equipment to be completely shut down after completing the mining of the integral multiple (2-4 times) of the width distance at one time on the working face;
fourthly, completing the water mining work of the working face length by the integral multiple (2-4 times) of the width distance once again, starting an upper end motor to drive an upper end hydraulic pump to work, using an upper end rotating wheel fixing oil cylinder group to fixedly release an upper end rotating wheel fixing sledge on the tunneling upper crossheading, using an upper end rotating wheel fixing sledge walking hydraulic cylinder to pull the upper end rotating wheel fixing sledge to walk by the integral multiple (2-4 times) of the width distance once, using an upper end rotating wheel fixing sledge fixing oil cylinder group to fix the upper end rotating wheel fixing sledge in the tunneling upper crossheading from the upper side, the lower side and the left side, the upper end adjusting distance oil cylinder stroke is the integral multiple (2-4 times) of the width distance once, simultaneously starting a lower end motor to drive a lower end hydraulic pump to work, using a lower end rotating wheel fixing sledge fixing oil cylinder group to release and fix the lower end rotating wheel fixing sledge on the tunneling lower crossheading, fixing the distance of integral multiple (2-4 times) of the width distance of the fixed sledge by using a lower end head rotating wheel fixed sledge to pull the lower end head rotating wheel fixed sledge to walk once, fixing the lower end head rotating wheel fixed sledge in a tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using a lower end head rotating wheel fixed sledge fixed oil cylinder group to enable the stroke of a lower end head distance adjusting oil cylinder to be the length of integral multiple (2-4 times) of the width distance of one time, pulling a bearing outer sleeve of an upper end head rotating wheel by using an upper end head distance adjusting oil cylinder to enable the upper end head rotating wheel to move once the width distance (0.25-0.6 m), pulling the bearing outer sleeve of the lower end head rotating wheel by using the lower end head distance adjusting oil cylinder to enable the lower end head rotating wheel to move once the width distance (0.25-0.6 m), repeating the second step and the third step to finish the water mining work of integral multiple (2-4 times) of the width distance of one time of the length of the working face again, stopping the water production equipment;
fifthly, completing the hydraulic production work of the whole working face, starting an upper end motor to drive an upper end hydraulic pump to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group to fixedly dismount the continuous oil pipe working system fixing sledge on the tunneling upper crossheading, using an upper end rotating wheel fixing sledge walking hydraulic cylinder to push the continuous oil pipe working system fixing sledge to walk for a distance which is 2 times (2-4 times) the width mining distance of one time, using the continuous oil pipe working system fixing sledge fixing oil cylinder group to fix the continuous oil pipe working system fixing sledge in the tunneling upper crossheading from the upper side, the lower side, the left side and the right side, using an upper end rotating wheel fixing sledge fixing oil cylinder group to fixedly dismount the upper end rotating wheel fixing sledge on the tunneling upper crossheading, using the upper end rotating wheel fixing sledge hydraulic cylinder to walk to pull the upper end rotating wheel fixing sledge to walk for a distance which is 2-4 times the width mining distance of one time, fixing an upper end rotating wheel fixing sledge in the tunneling upper crossheading from the upper side, the lower side and the left side by an upper end rotating wheel fixing sledge group, enabling the stroke of the upper end head distance adjusting oil cylinder to be the length which is integral multiple (2-4 times) of the primary mining width distance, simultaneously starting a lower end motor to drive a lower end hydraulic pump to work, fixing the mining winch sledge on the tunneling lower crossheading by the mining winch sledge fixing oil cylinder group, pushing the mining winch sledge to walk for the distance which is integral multiple (2-4 times) of the primary mining width distance by the lower end head rotating wheel fixing sledge by the lower end head rotating wheel fixing oil cylinder group, fixing the mining winch sledge in the tunneling lower crossheading from the upper side, the left side and the right side by the mining winch sledge fixing oil cylinder group, fixing the lower end head rotating wheel fixing oil cylinder group by the lower end head rotating wheel fixing oil cylinder, pulling the lower end rotating wheel fixing sledge to fix the distance which is integral multiple (2-4 times) of the primary mining width distance, and then fixing the lower end rotating wheel fixing sleds in the tunneling lower crossheading from the upper side, the lower side, the left side and the right side by using the lower end rotating wheel fixing sledge cylinder group, enabling the stroke of the lower end head distance-adjusting cylinder to be the length of integral multiple (2-4 times) of the primary mining width distance, repeating the second step, the third step, the fourth step and the fifth step to complete the mining of the whole working face, and then stopping the hydraulic mining equipment completely.
Furthermore, the oil cylinders of the fixed sledge fixed oil cylinder group, the upper end head rotating wheel fixed sledge fixed oil cylinder group, the lower end head rotating wheel fixed sledge fixed oil cylinder group, the mining winch sledge fixed oil cylinder group, the upper end head distance adjusting oil cylinder and the lower end head distance adjusting oil cylinder of the continuous oil pipe working system are manually controlled;
the distance of one-time width mining is 0.25-0.6 m, LMiningFor a practical length of water production, LMiningWorking surfaceLength/n, n is the number of times of water extraction required for completing the length of the whole working face when water extraction is carried out by using the primary water extraction length L, and n is [ working face length/L ]]；
And when the thickness of the coal bed is less than or equal to 0.5 m, the coal bed is mined for the first time, when the thickness of the coal bed is more than 0.5 m and less than 0.8 m, the coal bed is mined for the second time, and the first mining layer is the upper half part of the coal bed.
The beneficial effects of the invention are as follows: the invention provides continuous oil pipe water extraction equipment and a process for an undrawn protective coal seam, wherein hydraulic devices capable of controlling and adjusting moving pace distances are arranged at the upper end and the lower end of a working face, a control system controls two guide wheels to change the running direction, so that a high-pressure nozzle moves back and forth on the working face to continuously cut and crush coal bodies, the height of the guide wheels can be adjusted, coal seams with different thicknesses and different positions are extracted, water flow carries the cut and crushed coal dust bodies to a lower tunneling crossheading and carries out the cut and crushed coal dust bodies by a scraper conveyor, pressure relief is carried out on other adjacent coal seams, and the purposes of preventing coal and gas outburst, impacting the ground and improving the extraction effect of the coal seams are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic diagram of the control system of the present invention.
The reference numerals include: 1. coiled tubing, 2, a high-pressure hydraulic nozzle, 3, an upper end rotating wheel, 5, a coiled tubing driver, 6, a coiled tubing winder, 7, a coiled tubing device, 9, an upper end distance-adjusting cylinder, 12, a high-pressure water pipe, 13, an upper end rotating wheel fixing sledge traveling hydraulic cylinder, 14, a mining winch sledge, 15, an upper end rotating wheel height adjusting cylinder, 16, an upper end rotating wheel fixing sledge fixing cylinder group, 17, an upper end hydraulic pump, 18, an upper end motor, 19, a high-pressure water system sledge, 20, a coiled tubing working system fixing sledge fixing cylinder group, 21, a steel wire rope, 22, an upper end coiled tubing coiler hydraulic motor, 23, a coiled tubing winder hydraulic motor, 30, a coiled tubing driver hydraulic motor, 40, a scraper transporter, 90, a lower end distance-adjusting cylinder, 100, an upper tunneling gate, 103, a lower end rotating wheel, 120. the mining winch comprises a mining winch sledge fixing oil cylinder group, a lower end head rotating wheel fixing sledge walking oil cylinder, a lower end head rotating wheel height adjusting oil cylinder 151, a lower end head rotating wheel fixing sledge fixing oil cylinder group 161, a lower end head rotating wheel fixing sledge, an upper end head rotating wheel fixing sledge 170, a lower end head hydraulic pump 171, a lower end head rotating wheel fixing sledge 172, a lower end head rotating wheel fixing sledge 180, a continuous oil pipe working system fixing sledge 181, a lower end head motor 191, a high-pressure water supply system 200, a tunneling lower gate, a lower end head low-speed mining winch hydraulic motor 220, a lower end head low-speed mining winch disc 221 and a lower end head low-speed mining winch disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 and 3, the coiled tubing hydraulic mining equipment for protecting coal seams without mining thinness comprises an upper tunneling crossheading 100, a lower tunneling crossheading 200, an upper end head rotating wheel fixing pry 170, a lower end head rotating wheel fixing pry 172, a coiled tubing working system fixing pry 180, a high pressure water system pry 19, a mining winch pry 14 and a control system, wherein the whole working face needing hydraulic mining is the left side of the front surface of the middle coal seam part in fig. 1, the upper tunneling crossheading 100 and the lower tunneling crossheading 200 are tunnels on the upper side and the lower side, the upper end head rotating wheel fixing pry 170, the coiled tubing working system fixing pry 180 and the high pressure water system pry 19 are arranged in the upper tunneling crossheading 100, the lower end head rotating wheel fixing pry 172 and the mining winch pry 14 are arranged in the lower tunneling crossheading 200, the upper end head is a working face end with a higher elevation of a coal seam floor, the lower end head is a working face with a lower elevation of the coal seam floor, and the outer wall fixing pry 170 is provided with an upper end head rotating wheel fixing oil cylinder group 16 The upper, lower, left and right sides of the upper end head rotating wheel fixing pry 170 are fixed in the tunneling upper crossheading 100 through an upper end head rotating wheel fixing pry fixing oil cylinder group 16, the upper end head rotating wheel fixing pry 170 is firmly fixed from multiple directions, the upper end head rotating wheel 3 is fixedly assembled on the left side of the front surface of the upper end head rotating wheel fixing pry 170, the continuous oil pipe 1 is guided, the continuous oil pipe working system fixing pry fixing oil cylinder group 20 is fixedly assembled on the outer wall of the continuous oil pipe working system fixing pry 180, the upper, lower, left and right sides of the continuous oil pipe working system fixing pry 180 are fixed in the tunneling upper crossheading 100 through the continuous oil pipe working system fixing pry fixing oil cylinder group 20, the continuous oil pipe working system fixing pry 180 is firmly fixed from multiple directions, an upper end head rotating wheel fixing walking hydraulic cylinder 13 is fixedly installed between the continuous oil pipe working system fixing pry 180 and the upper end head rotating wheel fixing pry 170, is used for adjusting the distance between the upper end head rotating wheel fixing pry 170 and the coiled tubing work system fixing pry 180, the front wall of the coiled tubing work system fixing pry 180 is sequentially and fixedly provided with a coiled tubing driver 5, a coiled tubing winder 6, a coiled tubing coiler 7 and an upper end head motor 18, the coiled tubing driver 5, the coiled tubing winder 6 and the coiled tubing coiler 7 are used for adjusting the movement of the coiled tubing 1, the upper end of the coiled tubing driver 5 is fixedly provided with a coiled tubing driver hydraulic motor 30, the left end of the coiled tubing winder 6 is fixedly provided with a coiled tubing winder hydraulic motor 23, the upper end of the coiled tubing winder 7 is fixedly provided with an upper end head coiled tubing winder hydraulic motor 22, the output end of the upper end head motor 18 is fixedly provided with an upper end head hydraulic pump 17, and the upper end head motor 18 is used for controlling the operation of the upper end head hydraulic pump 17, the front surface of the high-pressure water system pry 19 is fixedly provided with a high-pressure water supply system 191, the left end of the high-pressure water supply system 191 is fixedly communicated with a high-pressure water pipe 12, the high-pressure water pipe 12 is communicated with a coiled tubing 1 through a hollow shaft of a coiled tubing coil 7, the high-pressure water supply system 191 supplies water for water production to the coiled tubing 1, the coiled tubing 1 sequentially passes through a coiled tubing winder 6, a coiled tubing driver 5 and an upper end rotating wheel 3, high-pressure hydraulic nozzles 2 are fixedly communicated at intervals around the outer surface of the left lower end of the coiled tubing 1, the water for water production is finally sprayed out from the high-pressure hydraulic nozzles 2 to act on a working face to complete water production work, the outer wall of the lower end rotating wheel fixing pry 172 is fixedly provided with a lower end rotating wheel fixing oil cylinder group 161, and the upper and lower and left sides and right sides of the lower end rotating wheel fixing pry 172 are fixed in a tunneling lower consequent groove 200 through the lower end rotating wheel fixing oil cylinder group 161, the lower end head rotating wheel fixing pry 172 is firmly fixed from multiple directions, the lower end head rotating wheel 103 is fixedly assembled on the left side of the front surface of the lower end head rotating wheel fixing pry 172 to guide a steel wire rope 21, the mining winch pry fixing oil cylinder group 120 is fixedly assembled on the outer wall of the mining winch pry 14, the upper side, the lower side, the left side and the right side of the mining winch pry 14 are fixed in the tunneling lower crossheading 200 through the mining winch pry fixing oil cylinder group 120, the mining winch pry 14 is firmly fixed from multiple directions, a lower end head rotating wheel fixing pry walking oil cylinder 131 is fixedly assembled between the mining winch pry 14 and the lower end head rotating wheel fixing pry 172 and used for adjusting the distance between the lower end head rotating wheel fixing pry 172 and the mining winch pry 14, a lower end head low-speed mining winch disc 221 and a lower end head motor 181 are fixedly installed on the front surface of the mining winch pry 14, and the lower end head low-speed winch disc 221 is used for controlling the movement of the steel wire rope 21, the lower end of the lower-end low-speed mining winch disc 221 is fixedly assembled with a lower-end low-speed mining winch hydraulic motor 220, the output end of a lower-end motor 181 is fixedly provided with a lower-end hydraulic pump 171, the lower-end motor 181 controls the operation of the lower-end hydraulic pump 171, the outer surface of the lower-end low-speed mining winch disc 221 is wound with a steel wire rope 21, the steel wire rope 21 is connected with the left lower end of the coiled tubing 1 through a lower-end rotating wheel 103, therefore, the movement of the coiled tubing 1 and the steel wire rope 21 is controlled through the structure of the coiled tubing 7 and the structure of the lower-end low-speed mining winch disc 221, further, the position of the high-pressure hydraulic nozzle 2 is adjusted, a scraper conveyor 40 is arranged inside the tunneling lower gate 200, the scraper conveyor 40 is positioned on the lower side of the working face and used for conveying away coal and water falling during water mining operation to release pressure of other adjacent coal seams, the purposes of preventing coal and gas outburst and improving the coal seam extraction effect are achieved;
the control system comprises a PLC, a touch screen and an upper and lower end voice communication system, wherein the PLC is respectively electrically connected with a coiled tubing driver hydraulic motor 30, a coiled tubing winder hydraulic motor 23, an upper end coiled tubing coiler hydraulic motor 22, an upper end motor 18, a high-pressure water supply system 191, a lower end low-speed mining winch hydraulic motor 220, a lower end motor 181, the touch screen and the upper and lower end voice communication system, the touch screen comprises an upper end touch screen and a lower end touch screen, operation control on all devices is facilitated, and workers in an upper tunneling crossheading 1 and a lower tunneling crossheading 2 are facilitated to communicate and operate through the upper and lower end voice communication system and the upper end touch screen and the lower end touch screen.
Specifically, the upper end hydraulic pump 17 provides hydraulic pressure for the upper end rotating wheel fixed pry fixing oil cylinder group 16, the upper end rotating wheel fixed pry traveling hydraulic cylinder 13 and the continuous oil pipe working system fixed pry fixing oil cylinder group 20, and the lower end hydraulic pump 171 provides hydraulic pressure for the lower end rotating wheel fixed pry fixing oil cylinder group 161, the lower end rotating wheel fixed pry traveling oil cylinder 131 and the mining winch pry fixing oil cylinder group 120.
Specifically, an upper end rotating wheel height adjusting cylinder 15 is fixedly assembled in a middle shaft inner cavity of the upper end rotating wheel 3, the upper end rotating wheel height adjusting cylinder 15 is used for adjusting the height position of the upper end rotating wheel 3, an upper end hydraulic pump 17 supplies hydraulic pressure to the upper end rotating wheel height adjusting cylinder 15, a lower end rotating wheel height adjusting cylinder 151 is fixedly assembled in a middle shaft inner cavity of the lower end rotating wheel 103, the lower end rotating wheel height adjusting cylinder 151 is used for adjusting the height position of the lower end rotating wheel 103, a lower end hydraulic pump 171 supplies hydraulic pressure to the lower end rotating wheel height adjusting cylinder 151, the specific position of the high-pressure hydraulic nozzle 2 can be adjusted in actual operation by adjusting the height positions of the upper end rotating wheel 3 and the lower end rotating wheel 103, when the thickness of the coal seam is less than or equal to 0.5 m, the high-pressure hydraulic nozzle 2 is aligned to the middle of the coal seam, when the thickness of the coal seam is larger than 0.5 meter and smaller than 0.8 meter, the high-pressure hydraulic nozzle 2 is aligned to the middle of the thickness of the first-time water coal seam.
Specifically, the water recovery process of the coiled tubing water recovery equipment for the non-recoverable protected coal seam comprises the following steps:
firstly, fixing equipment, using a drilling machine to punch the working surface from the upper end of the working surface of the tunneling upper crossheading 100, connecting a steel wire rope 21 on the drilling head and pulling out a drill rod, connecting the steel wire rope 21 with a continuous oil pipe 1 provided with a high-pressure hydraulic nozzle 2, starting an upper end motor 18 to drive an upper end hydraulic pump 17 to work, using an upper end rotating wheel fixing sleigh 16 to fix an upper end rotating wheel fixing sleigh 170 in the tunneling upper crossheading 100 from the upper side, the left side and the right side, using a continuous oil pipe working system fixing sleigh 20 to fix a continuous oil pipe working system fixing sleigh 180 in the tunneling upper crossheading 100 from the upper side, the left side and the right side, enabling the upper end rotating wheel fixing sleigh 170 and the continuous oil pipe working system fixing sleigh 180 to be separated by a distance which is 3 times of the whole-time mining width distance and is 0.9 m, starting a lower end motor 181 to drive a lower end hydraulic pump 171 to work, and using a lower end rotating wheel fixing sleigh 161 to fix a lower end rotating wheel fixing sleigh 172 from the upper side, the left side and the right side and the four sides The mining winch sleds 14 are fixed in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using the mining winch sleds fixing oil cylinder group 120, so that the lower end head rotating wheel fixing sleds 172 and the mining winch sleds 14 are separated by a distance which is integral multiple of 3 times of the primary mining width distance and is 0.9 meter;
secondly, completing the water production work of one-time width production of 0.3 m on the working face, adjusting the height of an upper end rotating wheel 3 by using an upper end rotating wheel height adjusting oil cylinder 15, adjusting the height of a lower end rotating wheel 103 by using a lower end rotating wheel height adjusting oil cylinder 151, starting an upper end coiled tubing coiler hydraulic motor 22 to enable a coiled tubing coiler 7 to work, starting a coiled tubing coiler hydraulic motor 23 to enable a coiled tubing coiler 6 to work, starting a coiled tubing driver hydraulic motor 30 to enable a coiled tubing driver 5 to work, tensioning a steel wire rope 21 to enable a high-pressure hydraulic nozzle 2 on a coiled tubing 1 to be positioned at the outlet position of the lower end of the working face, starting the upper end coiled tubing coiler hydraulic motor 22 to enable the coiled tubing coiler 7 to work, suspending after tensioning the coiled tubing 1 to confirm that the water production equipment is normal, starting a high-pressure water supply system 191, starting a scraper conveyor 40 arranged in a lower tunneling crossheading 200 to work, synchronously starting the hydraulic motor 220 of the low-speed mining winch at the lower end head to enable the winch disc 221 at the lower end head to work, starting the hydraulic motor 22 of the coiled tubing coiler at the upper end head to enable the coiled tubing coiler 7 to work, and starting the hydraulic motor 23 of the coiled tubing coiler to enable the coiled tubing to be woundThe device 6 works, and the hydraulic motor 30 of the coiled tubing driver is started to lead the coiled tubing driver 5 to work, so that the high-pressure hydraulic nozzle 2 carries out water production L from the lower end head to the upper end headMiningAfter the distance is moved forward and the water production is carried out, the water production L is carried outMiningReverse movement of distance and water production, then 2L water productionMiningAfter the forward movement of the distance and the water extraction, the water extraction is carried out for 2LMiningReverse movement of distance, water extraction and 3L water extractionMiningAfter the forward movement of the distance and the water production, the water production is carried out for 3LMiningThe distance reverse movement and the water mining are continuously repeated until the water mining with the working face length of 0.3 m of width is completed once, and the water mining equipment is completely shut down;
thirdly, completing the hydraulic mining work of the working face with the length of one mining width distance integral multiple of 3 times and 0.9 meter, starting the upper end motor 18 to drive the upper end hydraulic pump 17 to work, using the upper end rotating wheel fixing sledge fixing cylinder group 16 to fixedly release the upper end rotating wheel fixing sledge 170 on the tunneling upper crossheading 100, using the upper end rotating wheel fixing sledge traveling hydraulic cylinder 13 to pull the upper end rotating wheel fixing sledge 170 to travel for one mining width distance of 0.3 meter, using the upper end rotating wheel fixing sledge fixing cylinder group 16 to fix the upper end rotating wheel fixing sledge 170 in the tunneling upper crossheading 100 from the upper side, the lower end motor 181 to drive the lower end hydraulic pump 171 to work, using the lower end rotating wheel fixing cylinder group 161 to fixedly release the lower end rotating wheel fixing sledge 172 on the lower tunneling crossheading 200, using the lower end rotating wheel fixing sledge traveling cylinder 131 to pull the lower end rotating wheel fixing sledge to travel for one mining width distance of 0.3 meter, fixing the lower end rotating wheel fixing sledges 172 in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using the lower end rotating wheel fixing sledge fixing oil cylinder group 161, repeating the second step and the third step to finish the mining of a working surface with the distance which is integral multiple of 3 times of the mining width distance and is 0.9 meter, and stopping the hydraulic mining equipment completely;
fourthly, completing the hydraulic production work of the whole working face, starting an upper end motor 18 to drive an upper end hydraulic pump 17 to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group 20 to fix the continuous oil pipe working system fixing sledge 180 on the tunneling upper crossheading 100, using an upper end rotating wheel fixing sledge walking hydraulic cylinder 13 to push the continuous oil pipe working system fixing sledge 180 to walk for a distance which is integral multiple of 3 times of the mining width distance for one time and is 0.9 meter, using the continuous oil pipe working system fixing sledge fixing oil cylinder group 20 to fix the continuous oil pipe working system fixing sledge 180 in the tunneling upper crossheading 100 from the upper side and the lower side, using an upper end rotating wheel fixing sledge oil cylinder group 16 to fix the upper end rotating wheel fixing sledge 170 on the tunneling upper crossheading 100, using the upper end rotating wheel fixing sledge walking hydraulic cylinder 13 to pull the upper end rotating wheel fixing sledge 170 to walk for a distance for one time and is 0.3 meter, fixing the upper end rotating wheel fixing sledges 170 in the upper, lower, left and right sides of the tunneling upper crossheading 100 by the upper end rotating wheel fixing sledge fixing oil cylinder group 16, starting the lower end motor 181 to drive the lower end hydraulic pump 171 to work, unfixing the mining winch sleds 14 on the tunneling lower crossheading 200 by the mining winch sledge fixing oil cylinder group 120, fixing the mining winch sleds 14 in the tunneling lower crossheading 200 by the upper end rotating wheel fixing sledge walking oil cylinder 131 after pushing the mining winch sleds 14 to walk for an integral multiple of a mining width distance of 0.9 m, unfixing the lower end rotating wheel fixing sleds 172 on the tunneling lower crossheading 200 by the lower end rotating wheel fixing oil cylinder group 120, pulling the lower end rotating wheel fixing sleds 172 for a mining width distance of 0.3 m by the lower end rotating wheel fixing oil cylinder group 161, and fixing the lower end rotating wheel fixing sleds 172 from the upper, lower end rotating wheel fixing oil cylinder group 161 after pulling the lower end rotating wheel fixing sledges 172 from the upper, left and right sides of the upper and left and right sides of the tunneling upper and lower end rotating wheel fixing oil cylinder group 131, and the lower end rotating wheel fixing oil cylinder group 161 The side is fixed in the lower tunneling crossheading 200, the second step, the third step and the fourth step are repeated to finish the mining of the whole working face, and then the hydraulic mining equipment is completely shut down.
Specifically, the cylinders of the fixed skid-fixed cylinder group 20, the upper-end rotating wheel fixed skid-fixed cylinder group 16, the lower-end rotating wheel fixed skid-fixed cylinder group 161 and the mining winch skid-fixed cylinder group 120 of the coiled tubing work system are manually controlled.
Specifically, the once-width mining distance is 0.3 m, the once-initial water mining length L is 3 m, and the whole face length water mining frequency n is [ face length/L ]]＝[100/3]33 times, one actual water production length LMiningWork when becomingThe length of each face/n is 100/33-3.0303 m.
Specifically, the thickness of the coal seam is 0.5 m, the coal seam is mined once, and the upper end head rotating wheel 3 and the lower end head rotating wheel 103 are aligned with the middle of the coal seam.
Example two
Referring to fig. 2 and 3, the coiled tubing hydraulic production equipment for protecting coal seams without thin mining comprises an upper tunneling crossheading 100, a lower tunneling crossheading 200, an upper end rotating wheel fixing pry 170, a lower end rotating wheel fixing pry 172, a coiled tubing working system fixing pry 180, a high pressure water system pry 19, a mining winch pry 14 and a control system, wherein the upper end is a working face end with a higher elevation of a coal seam floor, the lower end is a working face end with a lower elevation of the coal seam floor, an upper end rotating wheel fixing oil cylinder group 16 is fixedly assembled on the outer wall of the upper end rotating wheel fixing pry 170, the upper side, the left side and the right side of the upper end rotating wheel fixing pry 170 are fixed in the upper tunneling crossheading 100 through the upper end rotating wheel fixing oil cylinder group 16, an upper end rotating wheel 3 is fixedly assembled on the left side of the front surface of the upper end rotating wheel fixing pry 170, a coiled tubing working system fixing pry 180 is assembled on the outer wall of the coiled tubing working system fixing pry 20, and the upper, lower, left and right four sides of the continuous oil pipe working system fixing pry 180 are fixed in the tunneling upper crossheading 100 through the continuous oil pipe working system fixing pry fixing oil cylinder group 20, an upper end rotating wheel fixing pry walking hydraulic cylinder 13 is fixedly arranged between the continuous oil pipe working system fixing pry fixing oil cylinder group 20 and an upper end rotating wheel fixing pry fixing oil cylinder group 16, a continuous oil pipe driver 5, a continuous oil pipe coiler 6, a continuous oil pipe coiler 7 and an upper end motor 18 are fixedly arranged on the front wall of the continuous oil pipe working system fixing pry 180 in sequence, a continuous oil pipe driver hydraulic motor 30 is fixedly arranged on the upper end of the continuous oil pipe driver 5, a continuous oil pipe coiler hydraulic motor 23 is fixedly arranged on the left end of the continuous oil pipe coiler 6, an upper end continuous oil pipe coiler hydraulic motor 22 is fixedly arranged on the upper end of the continuous oil pipe coiler 7, and an upper end hydraulic pump 17 is fixedly arranged on the output end of the upper end motor 18, the front surface of the high-pressure water system pry 19 is fixedly assembled with a high-pressure water supply system 191, the left end of the high-pressure water supply system 191 is fixedly communicated with a high-pressure water pipe 12, the high-pressure water pipe 12 is communicated with a coiled tubing 1 through a hollow shaft of a coiled tubing coiler 7, the coiled tubing 1 sequentially passes through a coiled tubing winder 6, a coiled tubing driver 5 and an upper end head rotating wheel 3, the periphery of the outer surface of the left lower end of the coiled tubing 1 is fixedly communicated with high-pressure hydraulic nozzles 2 at intervals, the outer wall of a lower end head rotating wheel fixing pry 172 is fixedly assembled with a lower end head rotating wheel fixing pry fixing oil cylinder group 161, the upper side, the lower side, the left side and the right side of the lower end head rotating wheel fixing pry 172 are fixed in a tunneling lower crossheading 200 through the lower end head rotating wheel fixing oil cylinder group 161, the left side of the front surface of the lower end head rotating wheel fixing pry 172 is fixedly assembled with a lower end rotating wheel 103, and the outer wall of a mining winch pry 14 is fixedly assembled with a mining winch pry fixing oil cylinder group 120, the upper side, the lower side, the left side and the right side of the mining winch pry 14 are fixed in the tunneling lower crossheading 200 through a mining winch pry fixing oil cylinder group 120, a lower end rotating wheel fixing pry walking oil cylinder 131 is fixedly assembled between the mining winch pry fixing oil cylinder group 120 and a lower end rotating wheel fixing pry fixing oil cylinder group 161, a lower end low-speed mining winch disc 221 and a lower end motor 181 are fixedly installed on the front surface of the mining winch pry 14, a lower end low-speed mining winch hydraulic motor 220 is fixedly assembled at the lower end of the lower end low-speed mining winch disc 221, a lower end hydraulic pump 171 is fixedly installed at the output end of the lower end motor 181, a steel wire rope 21 is wound on the outer surface of the lower end low-speed mining winch disc 221, the steel wire rope 21 is connected with the left lower end of the continuous oil pipe 1 after passing through a lower end rotating wheel 103, and a scraper conveyor 40 is arranged inside the tunneling lower crossheading 200;
the control system comprises a PLC, a touch screen and an upper end and lower end voice communication system, the PLC is respectively electrically connected with a coiled tubing driver hydraulic motor 30, a coiled tubing winder hydraulic motor 23, an upper end coiled tubing coiler hydraulic motor 22, an upper end motor 18, a high-pressure water supply system 191, a lower end low-speed mining winch hydraulic motor 220, a lower end motor 181, the touch screen and the upper and lower end voice communication systems, and the touch screen comprises an upper end touch screen and a lower end touch screen.
Specifically, the upper end hydraulic pump 17 provides hydraulic pressure for the upper end rotating wheel fixed pry fixing oil cylinder group 16, the upper end rotating wheel fixed pry traveling hydraulic cylinder 13 and the continuous oil pipe working system fixed pry fixing oil cylinder group 20, and the lower end hydraulic pump 171 provides hydraulic pressure for the lower end rotating wheel fixed pry fixing oil cylinder group 161, the lower end rotating wheel fixed pry traveling oil cylinder 131 and the mining winch pry fixing oil cylinder group 120.
Specifically, the upper end rotating wheel height adjusting cylinder 15 is fixedly assembled in the inner cavity of the center shaft of the upper end rotating wheel 3, the upper end hydraulic pump 17 supplies hydraulic pressure to the upper end rotating wheel height adjusting cylinder 15, the lower end rotating wheel 103 is fixedly assembled in the inner cavity of the center shaft, the lower end rotating wheel height adjusting cylinder 151 is fixedly assembled in the inner cavity of the center shaft, and the lower end hydraulic pump 171 supplies hydraulic pressure to the lower end rotating wheel height adjusting cylinder 151.
Specifically, an upper end head distance adjusting cylinder 9 is fixedly installed between the upper end head rotating wheel fixing pry 170 and the bearing outer sleeve of the upper end head rotating wheel 3, a lower end head distance adjusting cylinder 90 is fixedly installed between the lower end head rotating wheel fixing pry 172 and the bearing outer sleeve of the lower end head rotating wheel 103, the strokes of the upper end head distance adjusting cylinder 9 and the lower end head distance adjusting cylinder 90 are equal, and are the lengths of 0.25 m, integral multiple of 4 times and 1 m of the primary widening distance, the bearing outer sleeve of the upper end head rotating wheel 3 is inserted in the groove of the upper end head rotating wheel fixing pry 170, the bearing outer sleeve of the lower end head rotating wheel 103 is inserted in the groove of the lower end head rotating wheel fixing pry 172, and the positions of the upper end head rotating wheel 3 and the lower end head rotating wheel 103 can be adjusted without the movement of the upper end head rotating wheel fixing pry 170 and the lower end head rotating wheel fixing pry 172 through the structures of the upper end head distance adjusting cylinder 9 and the lower end head distance adjusting cylinder 90, the position adjustment of the upper head rotating wheel 3 and the lower head rotating wheel 103 is made easier.
Specifically, the water recovery process of the coiled tubing water recovery equipment for the non-recoverable protected coal seam comprises the following steps:
firstly, fixing equipment, using a drilling machine to punch the working surface from the upper end of the working surface of the upper tunneling crossheading 100, connecting a steel wire rope 21 to a drill bit to pull out a drill rod, connecting the steel wire rope 21 to a continuous oil pipe 1 provided with a high-pressure hydraulic nozzle 2, starting an upper end motor 18 to drive an upper end hydraulic pump 17 to work, using an upper end rotating wheel fixing oil cylinder group 16 to fix an upper end rotating wheel fixing sledge 170 in the upper tunneling crossheading 100 from the upper side, the left side and the right side, using a continuous oil pipe working system fixing sledge fixing oil cylinder group 20 to fix a continuous oil pipe working system fixing sledge 180 in the upper tunneling crossheading 100 from the upper side, the stroke of an upper end distance adjusting oil cylinder 9 is integral multiple of 4 times of the width distance of 1 meter, and the upper end rotating wheel fixing sledge 170 is spaced from the continuous oil pipe working system fixing sledge 180 by integral multiple of 4 times of the width distance of 1 meter, starting a lower end motor 181 to drive a lower end hydraulic pump 171 to work, fixing a lower end rotating wheel fixing sledge 172 in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using a lower end rotating wheel fixing sledge fixing oil cylinder group 161, fixing a mining winch sledge 14 in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using a mining winch sledge fixing oil cylinder group 120, and enabling the lower end rotating wheel fixing sledge 172 and the mining winch sledge 14 to be separated by a distance which is an integral multiple of 4 times and 1 meter of a mining width distance at one time, wherein the stroke of a lower end distance adjusting oil cylinder 90 is the length which is an integral multiple of 4 times and 1 meter of the mining width distance at one time;
secondly, completing the water production work of one-time width production of 0.25 m on the working face, adjusting the height of an upper end rotating wheel 3 by using an upper end rotating wheel height adjusting oil cylinder 15, adjusting the height of a lower end rotating wheel 103 by using a lower end rotating wheel height adjusting oil cylinder 151, starting an upper end coiled tubing coiler hydraulic motor 22 to enable a coiled tubing coiler 7 to work, starting a coiled tubing coiler hydraulic motor 23 to enable a coiled tubing coiler 6 to work, starting a coiled tubing driver hydraulic motor 30 to enable a coiled tubing driver 5 to work, tensioning a steel wire rope 21 to enable a high-pressure hydraulic nozzle 2 on a coiled tubing 1 to be positioned at the outlet position of the lower end of the working face, starting the upper end coiled tubing coiler hydraulic motor 22 to enable the coiled tubing coiler 7 to work, suspending after tensioning the coiled tubing 1 to confirm that the water production equipment is normal, starting a high-pressure water supply system 191, starting a scraper conveyor 40 arranged in a lower tunneling crossheading 200 to work, synchronously starting the hydraulic motor 220 of the low-speed mining winch at the lower end head to enable the winch disc 221 at the lower end head to work, starting the hydraulic motor 22 of the coiled tubing coiler at the upper end head to enable the coiled tubing coiler 7 to work, starting the hydraulic motor 23 of the coiled tubing coiler to enable the coiled tubing coiler 6 to work, and starting the hydraulic motor 30 of the coiled tubing driver to enable the coiled tubing to workThe driver 5 works to make the high-pressure hydraulic nozzle 2 carry out water extraction L from the lower end head to the upper end headMiningDistance forward movement and water extraction, and then water extraction LMiningReverse movement of distance and water production, then 2L water productionMiningDistance forward movement and water extraction are carried out, and 2L water extraction is carried outMiningReverse movement of distance, water extraction and 3L water extractionMiningDistance forward movement and water extraction, and 3L water extractionMiningThe distance reverse movement and the water mining are continuously repeated until the water mining is finished after the working face is wide once and the water mining is finished, and the water mining equipment is completely shut down;
thirdly, completing the water mining work of the working face with the length of the integral multiple of the width distance of 4 times and the distance of 1 meter, starting an upper end motor 18 to drive an upper end hydraulic pump 17 to work, using an upper end distance adjusting oil cylinder 9 to pull a bearing outer sleeve of an upper end rotating wheel 3 to enable the upper end rotating wheel 3 to move for the width distance of 0.25 meter once, using a lower end distance adjusting oil cylinder 90 to pull a bearing outer sleeve of a lower end rotating wheel 103 to enable the lower end rotating wheel 103 to move for the width distance of 0.25 meter once, repeating the second step and the third step, and completely stopping the water mining equipment after completing the mining of the working face with the integral multiple of the width distance of 4 times and the distance of 1 meter once;
fourthly, completing the water mining work of the working face length by the integral multiple of 4 times the distance of 1 meter once again, starting the upper end motor 18 to drive the upper end hydraulic pump 17 to work, using the upper end rotating wheel fixing sledge fixed cylinder group 16 to fixedly release the upper end rotating wheel fixing sledge 170 on the tunneling upper crossheading 100, using the upper end rotating wheel fixing sledge traveling hydraulic cylinder 13 to pull the upper end rotating wheel fixing sledge 170 to travel by the integral multiple of 4 times the distance of 1 meter once, using the upper end rotating wheel fixing sledge fixed cylinder group 16 to fix the upper end rotating wheel fixing sledge 170 in the tunneling upper crossheading 100 from the upper side and the lower side, making the stroke of the upper end distance adjusting cylinder 9 be the length of the integral multiple of 4 times the distance of 1 meter, simultaneously starting the lower end motor 181 to drive the lower end hydraulic pump 171 to work, using the lower end rotating wheel fixing sledge group 161 to release the lower end rotating wheel fixing sledge 172 from the fixation on the tunneling lower crossheading 200, pulling the lower end rotating wheel fixing sledge 172 by using a lower end rotating wheel fixing sledge walking oil cylinder 131 to walk for a distance which is integral multiple of 4 times and 1 meter of the mining width distance once, then fixing the lower end rotating wheel fixing sledge 172 in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using a lower end rotating wheel fixing sledge fixed oil cylinder group 161, enabling the stroke of the lower end head distance adjusting oil cylinder 90 to be the length which is integral multiple of 4 times and 1 meter of the mining width distance once, then pulling the bearing outer sleeve of the upper end rotating wheel 3 by using an upper end head distance adjusting oil cylinder 9 to enable the upper end head rotating wheel 3 to move for a mining width distance of 0.25 meter once, pulling the bearing outer sleeve of the lower end rotating wheel 103 by using the lower end head distance adjusting oil cylinder 90 to enable the lower end rotating wheel 103 to move for a mining width distance of 0.25 meter once, and repeating the second step, thirdly, completing the water mining work of the length of the working face by integral multiple of 4 times of the width distance and 1 meter distance again, and stopping the water mining equipment;
fifthly, completing the hydraulic production work of the whole working face, starting an upper end motor 18 to drive an upper end hydraulic pump 17 to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group 20 to unfixed the continuous oil pipe working system fixing sledge 180 on the tunneling upper crossheading 100, using an upper end rotating wheel fixing sledge traveling hydraulic cylinder 13 to push the continuous oil pipe working system fixing sledge 180 to travel for a distance of 2 times 2 meters which is integral multiple of 4 times of the mining width distance once, using the continuous oil pipe working system fixing sledge fixing oil cylinder group 20 to fix the continuous oil pipe working system fixing sledge 180 in the tunneling upper crossheading 100 from the upper side and the lower side, using an upper end rotating wheel fixing sledge oil cylinder group 16 to unfixed the upper end rotating wheel fixing sledge 170 on the tunneling upper crossheading 100, using the upper end rotating wheel fixing sledge traveling hydraulic cylinder 13 to pull the upper end rotating wheel fixing sledge 170 to travel for a distance which is integral multiple of 4 times 1 meter once, fixing the upper end rotating wheel fixing sleds 170 in the tunneling upper crossheading 100 from the upper, lower, left and right sides by the upper end rotating wheel fixing sledge cylinder group 16, making the stroke of the upper end head distance adjusting cylinder 9 be the length of integral multiple of 4 times of the primary mining width distance by 1 meter, simultaneously starting the lower end motor 181 to drive the lower end head hydraulic pump 171 to work, unfixing the mining winch sleds 14 on the tunneling lower crossheading 200 by the mining winch sledge fixing cylinder group 120, pushing the mining winch sleds 14 to walk for 2 times of 2 meters by the integral multiple of 4 times of the primary mining width distance by the lower end head rotating wheel fixing sledge cylinder group 131, unfixing the mining winch sleds 14 in the tunneling lower crossheading 200 from the upper, left and right sides by the mining winch sledge fixing cylinder group 120, unfixing the lower end rotating wheel fixing sledge 172 on the tunneling lower crossheading 200 by the lower end head rotating wheel fixing sledge cylinder group 161, and pulling the lower end head rotating wheel fixing sledge 131 to fix the distance 172 integral multiple of the primary mining width distance by the lower end head rotating wheel fixing sledge 172 by the lower end head rotating wheel fixing cylinder group 120 And 4 times the distance of 1 meter, then fixing the lower end head rotating wheel fixing sleds 172 in the tunneling lower crossheading 200 from the upper side, the lower side, the left side and the right side by using the lower end head rotating wheel fixing sledge fixing cylinder group 161, enabling the stroke of the lower end head distance-adjusting oil cylinder 90 to be the length which is 4 times of the integral multiple of the once mining width distance by 1 meter, repeating the second step, the third step, the fourth step and the fifth step to complete the mining of the whole working face, and then stopping the whole hydraulic mining equipment.
Specifically, the cylinders of the fixed skid fixed cylinder group 20, the upper end head rotating wheel fixed skid fixed cylinder group 16, the lower end head rotating wheel fixed skid fixed cylinder group 161, the mining winch skid fixed cylinder group 120, the upper end head distance adjusting cylinder 9 and the lower end head distance adjusting cylinder 90 of the continuous oil pipe working system are manually controlled;
the distance of one mining width is 0.25 m, the length L of one initial water mining is 4 m, and the number of water mining times n of the length of the whole working face is [ length of working face/L ]]＝[100/4]25 times, one actual water production length LMiningWorking face length/n is 100/25 is 4 m;
when the thickness of the coal seam is 0.45 m, the coal seam is mined once, and the upper end head rotating wheel 3 and the lower end head rotating wheel 103 are aligned to the middle of the coal seam.
The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the invention are therefore considered to be within the scope of the invention.

Claims (10)

1. Coiled tubing water production of protection coal seam is equipped not to adopt thin, its characterized in that: including tunnelling in the crossheading (100), tunnelling down crossheading (200), upper end head rotate fixed sled (170) of wheel, lower end head rotate fixed sled (172) of wheel, the fixed sled (180) of coiled tubing work system, high pressure water system sled (19), mining winch sled (14) and control system, the upper end is the higher working face end of coal seam bottom plate elevation, the lower end is the lower working face end of coal seam bottom plate elevation, the outer wall fixed assembly that the fixed sled (170) of upper end head rotated wheel has upper end to rotate fixed sled oil cylinder group (16) of wheel, and four sides about the upper end head rotated fixed sled (170) of wheel are fixed in tunnelling in the crossheading (100) through upper end head rotated fixed sled fixed oil cylinder group (16), the fixed upper end rotation wheel (3) of being equipped with in the front surface left side of the fixed sled (170) of upper end head rotation wheel, the outer wall fixed assembly that the fixed sled (180) of coiled tubing work system has fixed sled fixed oil cylinder (100) of fixed sled of coiled tubing work system The continuous oil pipe coiler hydraulic control system comprises a group (20), wherein the upper side, the lower side, the left side and the right side of a continuous oil pipe working system fixing pry (180) are fixed in an upper tunneling gate (100) through a continuous oil pipe working system fixing pry fixing oil cylinder group (20), an upper end rotating wheel fixing pry walking hydraulic cylinder (13) is fixedly installed between the continuous oil pipe working system fixing pry (180) and an upper end rotating wheel fixing pry (170), a continuous oil pipe driver (5), a continuous oil pipe coiler (6), a continuous oil pipe coiler (7) and an upper end motor (18) are fixedly installed on the front wall of the continuous oil pipe working system fixing pry (180) in sequence, a continuous oil pipe driver hydraulic motor (30) is fixedly installed at the upper end of the continuous oil pipe driver (5), a continuous oil pipe coiler hydraulic motor (23) is fixedly installed at the left end of the continuous oil pipe coiler (6), and an upper end continuous oil pipe coiler hydraulic motor (22) is fixedly installed at the upper end of the continuous oil pipe coiler (7) ) The outer wall of the lower end rotating wheel fixing pry (172) is fixedly provided with a lower end rotating wheel fixing pry fixing oil cylinder group (161), and the upper left side and the lower right side of the lower end rotating wheel fixing pry (172) are fixed on the lower forward and backward direction through the lower end rotating wheel fixing pry fixing oil cylinder group (161) In the groove (200), a lower end rotating wheel (103) is fixedly assembled on the left side of the front surface of the lower end rotating wheel fixing pry (172), a mining winch pry fixing oil cylinder group (120) is fixedly assembled on the outer wall of the mining winch pry (14), the upper side, the lower side, the left side and the right side of the mining winch pry (14) are fixed in the tunneling lower crossheading (200) through the mining winch pry fixing oil cylinder group (120), a lower end rotating wheel fixing pry walking oil cylinder (131) is fixedly assembled between the mining winch pry (14) and the lower end rotating wheel fixing pry (172), a lower end low-speed mining winch disc (221) and a lower end motor (181) are fixedly installed on the front surface of the mining winch pry (14), a lower end low-speed mining winch hydraulic motor (220) is fixedly assembled at the lower end of the lower end low-speed mining winch disc (221), and a lower end hydraulic pump (171) is fixedly installed at the output end of the lower end motor (181), a steel wire rope (21) is wound on the outer surface of the lower-end low-speed mining winch disc (221), the steel wire rope (21) is connected with the left lower end of the continuous oil pipe (1) through a lower-end rotating wheel (103), and a scraper conveyor (40) is arranged inside the tunneling lower gate (200);
the control system comprises a PLC, a touch screen and an upper end and lower end voice communication system, wherein the PLC is respectively electrically connected with a coiled tubing driver hydraulic motor (30), a coiled tubing winder hydraulic motor (23), an upper end coiled tubing coiler hydraulic motor (22), an upper end motor (18), a high-pressure water supply system (191), a lower end low-speed mining winch hydraulic motor (220), a lower end motor (181), the touch screen and the upper and lower end voice communication systems, and the touch screen comprises an upper end touch screen and a lower end touch screen.
2. The coiled tubing water production rig for non-productive protected coal seams as claimed in claim 1, wherein: the hydraulic winch is characterized in that the upper end hydraulic pump (17) provides hydraulic pressure for the upper end rotating wheel fixing pry fixing oil cylinder group (16), the upper end rotating wheel fixing pry walking hydraulic cylinder (13) and the continuous oil pipe working system fixing pry fixing oil cylinder group (20), and the lower end hydraulic pump (171) provides hydraulic pressure for the lower end rotating wheel fixing pry fixing oil cylinder group (161), the lower end rotating wheel fixing pry walking oil cylinder (131) and the mining winch pry fixing oil cylinder group (120).
3. The coiled tubing water production rig for non-recoverable, protected coal seams of claim 2, wherein: the middle shaft inner cavity of the upper end rotating wheel (3) is fixedly provided with an upper end rotating wheel height adjusting oil cylinder (15), an upper end hydraulic pump (17) provides hydraulic pressure for the upper end rotating wheel height adjusting oil cylinder (15), the middle shaft inner cavity of the lower end rotating wheel (103) is fixedly provided with a lower end rotating wheel height adjusting oil cylinder (151), and a lower end hydraulic pump (171) provides hydraulic pressure for the lower end rotating wheel height adjusting oil cylinder (151).
4. The coiled tubing water production rig for non-recoverable, protected coal seams of any of claims 1 to 3, wherein: an upper end distance adjusting oil cylinder (9) is fixedly installed between the upper end rotating wheel fixing pry (170) and a bearing outer sleeve of the upper end rotating wheel (3), a lower end distance adjusting oil cylinder (90) is fixedly installed between the lower end rotating wheel fixing pry (172) and a bearing outer sleeve of the lower end rotating wheel (103), the strokes of the upper end distance adjusting oil cylinder (9) and the lower end distance adjusting oil cylinder (90) are equal, the strokes are the lengths of integral multiples (2-4 times) of the primary width-collecting distance (0.25-0.6 m), the bearing outer sleeve of the upper end rotating wheel (3) is inserted into a groove of the upper end rotating wheel fixing pry (170), and the bearing outer sleeve of the lower end rotating wheel (103) is inserted into a groove of the lower end rotating wheel fixing pry (172).
5. A water recovery process for coiled tubing water recovery equipment for the protection of coal seams where no mining is possible as claimed in any of claims 1 to 3, comprising the steps of:
firstly, fixing equipment, connecting a steel wire rope (21) on a drill bit and pulling out the drill rod after the drill bit penetrates through a working surface from the upper end of the working surface of a tunneling upper crossheading (100), connecting the steel wire rope (21) with a continuous oil pipe (1) provided with a high-pressure hydraulic nozzle (2), starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, fixing an upper end rotating wheel fixing oil cylinder group (16) to fix an upper end rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the lower side, the left side and the right side, fixing the continuous oil pipe working system fixing sledge (180) in the tunneling upper crossheading (100) from the upper side, the left side, the right side and the left side by using a continuous oil pipe working system fixing sledge fixing oil cylinder group (20), and enabling the upper end rotating wheel fixing sledge (170) and the continuous oil pipe working system fixing sledge (180) to be separated by a distance which is integral multiple (2-4 times) of a primary mining width distance, starting a lower end motor (181) to drive a lower end hydraulic pump (171) to work, fixing a lower end rotating wheel fixing oil cylinder group (161) by using a lower end rotating wheel fixing sledge to fix a lower end rotating wheel fixing sledge (172) in a tunneling lower crossheading (200) from the upper side, the lower side, the left side and the right side, fixing a mining winch sledge (14) in the tunneling lower crossheading (200) from the upper side, the left side, the right side and the four sides by using a mining winch sledge fixing oil cylinder group (120), and enabling the lower end rotating wheel fixing sledge (172) and the mining winch sledge (14) to be separated by a distance which is an integral multiple (2-4 times) of a mining width distance;
secondly, completing the water mining work of one-time width mining of the length of the working face, adjusting the height of an upper end head rotating wheel (3) by using an upper end head rotating wheel height adjusting oil cylinder (15), adjusting the height of a lower end head rotating wheel (103) by using a lower end head rotating wheel height adjusting oil cylinder (151), starting a lower end head low-speed mining winch hydraulic motor (220) to enable a lower end head low-speed mining winch disc (221) to work, tensioning a steel wire rope (21) to enable a high-pressure hydraulic nozzle (2) on the continuous oil pipe (1) to be positioned at the outlet position of the lower end head of the working face, starting a continuous oil pipe winder hydraulic motor (23) to enable a continuous oil pipe winder (6) to work, starting a continuous oil pipe driver hydraulic motor (30) to enable a continuous oil pipe driver (5) to work, starting an upper end head continuous oil pipe winder hydraulic motor (22) to enable a continuous oil pipe winder (7) to work, and suspending after tensioning the continuous oil pipe (1), confirming that the hydraulic mining equipment is normal, starting a high-pressure water supply system (191), starting a scraper conveyer (40) arranged in a lower tunneling gate (200), synchronously starting a hydraulic motor (220) of a lower-end-head low-speed mining winch to enable a lower-end-head low-speed mining winch disc (221) to work, starting a hydraulic motor (22) of an upper-end-head coiled tubing coil device to enable a coiled tubing coil device (7) to work, starting a hydraulic motor (23) of the coiled tubing coil device to enable a coiled tubing coil device (6) to work, and starting a hydraulic motor (30) of a coiled tubing driver to enable a coiled tubing driver (5) to workThen, the high-pressure hydraulic nozzle (2) is used for water extraction L from the lower end head to the upper end headMiningAfter the distance is moved forward and the water production is carried out, the water production L is carried outMiningReverse movement of distance and water production, then 2L water productionMiningAfter the forward movement of the distance and the water extraction, the water extraction is carried out for 2LMiningReverse movement of distance, water extraction and 3L water extractionMiningAfter the forward movement of the distance and the water production, the water production is carried out for 3LMiningThe distance reverse movement and the water mining are continuously repeated until the water mining with the working face length of the width mining distance is completed once, and the water mining equipment is completely shut down;
thirdly, completing the water mining work of the length of the working face at the distance which is integral multiple (2-4 times) of the width distance at one time, starting an upper end head motor (18) to drive an upper end head hydraulic pump (17) to work, using an upper end head rotating wheel fixing sledge fixing oil cylinder group (16) to fix the upper end head rotating wheel fixing sledge (170) on the tunneling upper crossheading (100) in a releasing way, using an upper end head rotating wheel fixing sledge walking hydraulic cylinder (13) to pull the upper end head rotating wheel fixing sledge (170) to walk for the width distance at one time, using an upper end head rotating wheel fixing sledge fixing oil cylinder group (16) to fix the upper end head rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the left side and the right side, starting a lower end head motor (181) to drive a lower end head hydraulic pump (171) to work, using a lower end head rotating wheel fixing sledge group (161) to fix the lower end head rotating wheel fixing sledge (172) on the tunneling lower crossheading (200) in a releasing way, after a lower end head rotating wheel fixing sledge walking oil cylinder (131) pulls a lower end head rotating wheel fixing sledge (172) to walk for once mining width distance, a lower end head rotating wheel fixing sledge (172) is fixed in a tunneling lower crossheading (200) from the upper side, the lower side, the left side and the right side by a lower end head rotating wheel fixing sledge oil cylinder group (161), and after the second step and the third step are repeated, mining of a working face with the distance of integral multiple (2-4 times) of the once mining width distance is completed, the water mining equipment is completely shut down;
fourthly, completing the hydraulic mining work of the whole working face, starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group (20) to fix the continuous oil pipe working system fixing sledge (180) on the tunneling upper crossheading (100) in a releasing way, using an upper end rotating wheel fixing sledge walking hydraulic cylinder (13) to push the continuous oil pipe working system fixing sledge (180) to walk for a distance which is integral multiple (2-4 times) of the mining width distance, using the continuous oil pipe working system fixing sledge fixing oil cylinder group (20) to fix the continuous oil pipe working system fixing sledge (180) in the tunneling upper crossheading (100) from the upper side, the upper end rotating wheel fixing sledge group (16) to fix the upper end rotating wheel fixing sledge (170) on the tunneling upper crossheading (100), and using the upper end rotating wheel fixing sledge hydraulic cylinder (13) to pull the upper end rotating wheel fixing sledge (170) to fix the mining width for a single time After the distance is reached, an upper end head rotating wheel fixing oil cylinder group (16) is used for fixing an upper end head rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the lower side, the left side and the right side, a lower end head motor (181) is started to drive a lower end head hydraulic pump (171) to work, a mining winch sledge (14) is fixedly removed from the tunneling lower crossheading (200) by using a mining winch sledge fixing oil cylinder group (120), the mining winch sledge (14) is fixed in the tunneling lower crossheading (200) from the upper side, the left side and the right side by using a lower end head rotating wheel fixing sledge walking oil cylinder (131) to push the mining winch sledge (14) to walk for one time by a distance which is integral multiple (2-4 times), the mining winch sledge is fixedly removed from the tunneling lower crossheading (200) by using a mining winch sledge fixing oil cylinder group (120), and the lower end head rotating wheel fixing sledge (172) is fixedly removed from the tunneling crossheading (200) by using a lower end head rotating wheel fixing oil cylinder group (161), after the lower end head rotating wheel fixing sledge (172) is pulled by a lower end head rotating wheel fixing sledge walking oil cylinder (131) to walk for once mining width distance, the lower end head rotating wheel fixing sledge (172) is fixed in the tunneling lower crossheading (200) from the upper side, the lower side, the left side and the right side by a lower end head rotating wheel fixing sledge fixing oil cylinder group (161), the second step, the third step and the fourth step are repeated to complete mining of the whole working face, and then the water mining equipment is completely shut down.
6. The water recovery process of coiled tubing water recovery equipment for an undeniable protected coal seam as claimed in claim 5, wherein: and the oil cylinders of the fixed skid fixed oil cylinder group (20), the upper end head rotating wheel fixed skid fixed oil cylinder group (16), the lower end head rotating wheel fixed skid fixed oil cylinder group (161) and the mining winch skid fixed oil cylinder group (120) of the continuous oil pipe working system are manually controlled.
7. The water recovery process of coiled tubing water recovery equipment for an undeniable protected coal seam as claimed in claim 6, wherein: the distance of one-time width mining is 0.25-0.6 m, LMiningFor a practical length of water production, LMiningN is the number of times of water mining required for completing the length of the whole working face when water mining is carried out by using the primary water mining length L, and n is the length of the working face/L]。
8. The water recovery process of coiled tubing water recovery equipment for the non-recoverable protected coal seam according to any one of claims 5 to 7, wherein: and when the thickness of the coal bed is less than or equal to 0.5 m, the coal bed is mined for the first time, when the thickness of the coal bed is more than 0.5 m and less than 0.8 m, the coal bed is mined for the second time, and the first mining layer is the upper half part of the coal bed.
9. The water recovery process of coiled tubing water recovery equipment for an undeniable protected coal seam as claimed in claim 4, comprising the steps of:
firstly, fixing equipment, using a drilling machine to punch the working surface from the upper end of the working surface of the tunneling upper crossheading (100), connecting a steel wire rope (21) on a drill bit to pull out a drill rod, connecting the steel wire rope (21) with a continuous oil pipe (1) provided with a high-pressure hydraulic nozzle (2), starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, using an upper end rotating wheel fixing sledge fixing oil cylinder group (16) to fix an upper end rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the left side and the right side, using a continuous oil pipe working system fixing sledge fixing oil cylinder group (20) to fix a continuous oil pipe working system fixing sledge (180) in the tunneling upper crossheading (100) from the upper side, the left side and the right side, enabling the stroke of an upper end distance adjusting oil cylinder (9) to be the length of integral multiple (2-4 times) of the primary mining width distance, and enabling the upper end rotating wheel fixing sledge (170) to be spaced from the continuous oil pipe working system fixing sledge (180) by integral multiple of the primary mining width distance (2-4 times) of distance, starting a lower end motor (181) to drive a lower end hydraulic pump (171) to work, fixing a lower end rotating wheel fixing oil cylinder group (161) from the upper side, the lower side, the left side and the right side of the lower end rotating wheel fixing sledge (172) in a tunneling lower crossheading (200) by using a lower end rotating wheel fixing oil cylinder group, fixing a mining winch sledge (14) in the tunneling lower crossheading (200) from the upper side, the left side, the right side and the left side of the mining winch sledge (14) by using a mining winch sledge fixing oil cylinder group (120), and enabling the stroke of a lower end distance adjusting oil cylinder (90) to be the length of integral multiple (2-4 times) of one-time mining width distance so that the lower end rotating wheel fixing sledge (172) and the mining winch sledge (14) are separated by the distance of integral multiple (2-4 times) of one-time mining width distance;
secondly, completing the water mining work of one-time width mining of the length of the working face, adjusting the height of an upper end head rotating wheel (3) by using an upper end head rotating wheel height adjusting oil cylinder (15), adjusting the height of a lower end head rotating wheel (103) by using a lower end head rotating wheel height adjusting oil cylinder (151), starting a lower end head low-speed mining winch hydraulic motor (220) to enable a lower end head low-speed mining winch disc (221) to work, tensioning a steel wire rope (21) to enable a high-pressure hydraulic nozzle (2) on the continuous oil pipe (1) to be positioned at the outlet position of the lower end head of the working face, starting an upper end head continuous oil pipe coiler hydraulic motor (22) to enable a continuous oil pipe coiler (7) to work, starting a continuous oil pipe coiler hydraulic motor (23) to enable a continuous oil pipe coiler (6) to work, starting a continuous oil pipe driver hydraulic motor (30) to enable a continuous oil pipe driver (5) to work, and pausing after tensioning the continuous oil pipe (1), after the water mining equipment is confirmed to be normal, after a high-pressure water supply system (191) is started, a scraper conveyer (40) arranged in a lower tunneling gate (200) is started to work, a hydraulic motor (220) of a lower-end-head low-speed mining winch is synchronously started to enable a lower-end-head low-speed mining winch disc (221) to work, a hydraulic motor (22) of an upper-end-head coiled tubing coil device is started to enable a coiled tubing coil device (7) to work, a hydraulic motor (23) of the coiled tubing coil device is started to enable a coiled tubing coil device (6) to work, a hydraulic motor (30) of a coiled tubing driver is started to enable a coiled tubing driver (5) to work, and a high-pressure hydraulic nozzle (2) is enabled to carry out water mining L from the lower end head to the upper end headMiningDistance forward movement and water extraction, and then water extraction LMiningReverse movement of distance and water production, then 2L water productionMiningDistance forward movement and water extraction are carried out, and 2L water extraction is carried outMiningReverse movement of distance, water extraction and 3L water extractionMiningDistance forward movement and water extraction, and 3L water extractionMiningThe distance reverse movement and the water mining are continuously repeated until the water mining is finished after the working face is wide once and the water mining is finished, and the water mining equipment is completely shut down;
thirdly, completing the water mining work of the working face with the length of the integral multiple (2-4 times) of the width distance, starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, using an upper end distance-adjusting oil cylinder (9) to pull a bearing outer sleeve of an upper end rotating wheel (3) to enable the upper end rotating wheel (3) to move for the width distance (0.25-0.6 m), using a lower end distance-adjusting oil cylinder (90) to pull a bearing outer sleeve of a lower end rotating wheel (103) to enable the lower end rotating wheel (103) to move for the width distance (0.25-0.6 m), repeating the second step and the third step, completing the water mining work of the integral multiple (2-4 times) of the width distance, and completely stopping the water mining equipment;
fourthly, completing the water mining work of the length of the working face at the distance of integral multiple (2-4 times) of the width distance once again, starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, using an upper end rotating wheel fixing oil cylinder group (16) to fixedly release the upper end rotating wheel fixing sledge (170) on the tunneling upper crossheading (100), using an upper end rotating wheel fixing sledge traveling hydraulic cylinder (13) to pull the upper end rotating wheel fixing sledge (170) to travel for the distance of integral multiple (2-4 times) of the width distance once, using the upper end rotating wheel fixing oil cylinder group (16) to fix the upper end rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the left side and the right side, enabling the stroke of an upper end distance adjusting oil cylinder (9) to be the length of integral multiple (2-4 times) of the width distance once, and simultaneously starting a lower end motor (181) to drive a lower end hydraulic pump (171) to work, the lower end head rotating wheel fixing sledge (172) is released and fixed on the tunneling lower crossheading (200) by using a lower end head rotating wheel fixing sledge fixing oil cylinder group (161), the lower end head rotating wheel fixing sledge (172) is pulled by a lower end head rotating wheel fixing sledge walking oil cylinder (131) to walk for one time by the distance of the whole multiple (2-4 times) of the mining width distance, then the lower end head rotating wheel fixing sledge (172) is fixed in the tunneling lower crossheading (200) from the upper left side and the lower right side by using a lower end head rotating wheel fixing sledge fixing oil cylinder group (161), the stroke of a lower end head distance adjusting oil cylinder (90) is the length of the whole multiple (2-4 times) of the mining width distance, then an upper end head distance adjusting oil cylinder (9) is used for pulling a bearing outer sleeve of an upper end head rotating wheel (3) to enable the upper end head rotating wheel (3) to move for one time by the mining width distance (0.25-0.6 meter), and a lower end head distance adjusting oil cylinder (90) is used for pulling a bearing outer sleeve rotating wheel (103) of the lower end head rotating wheel (103) to move for one time Repeating the second step and the third step to finish the water mining work of the working face with the length of one-time mining width distance integral multiple (2-4 times) at a distance (0.25-0.6 m), and stopping the water mining equipment;
fifthly, completing the hydraulic mining work of the whole working face, starting an upper end motor (18) to drive an upper end hydraulic pump (17) to work, using a continuous oil pipe working system fixing sledge fixing oil cylinder group (20) to fix the continuous oil pipe working system fixing sledge (180) on the tunneling upper crossheading (100) in a releasing way, using an upper end rotating wheel fixing sledge walking hydraulic cylinder (13) to push the continuous oil pipe working system fixing sledge (180) to walk for a distance which is integral multiple (2-4 times) of the mining width distance for 2 times, using the continuous oil pipe working system fixing sledge fixing oil cylinder group (20) to fix the continuous oil pipe working system fixing sledge (180) in the tunneling upper crossheading (100) from the upper side, the upper end rotating wheel fixing sledge group (16) to fix the upper end rotating wheel fixing sledge (170) on the tunneling upper crossheading (100), and using the upper end rotating wheel fixing sledge hydraulic cylinder (13) to pull the upper end rotating wheel fixing sledge (170) to mining head fixing sledge for a single-time After the distance of the integral multiple (2-4 times) of the wide distance, an upper end head rotating wheel fixing oil cylinder group (16) is used for fixing an upper end head rotating wheel fixing sledge (170) in the tunneling upper crossheading (100) from the upper side, the lower side, the left side and the right side, the stroke of an upper end head distance adjusting oil cylinder (9) is made to be the length of the integral multiple (2-4 times) of the primary mining width distance, a lower end head motor (181) is started to drive a lower end head hydraulic pump (171) to work, a tunneling winch sledge fixing oil cylinder group (120) is used for fixedly releasing the mining winch sledge (14) on the lower crossheading (200), a lower end head rotating wheel fixing sledge walking oil cylinder (131) is used for pushing the mining winch sledge (14) to walk for the distance of the integral multiple (2-4 times) of the primary mining width distance, and the mining winch sledge (14) is fixed in the tunneling crossheading (200) from the upper side, the left side, the lower side, the left side, the right side and the left side and the right side, and (3) using a lower end head rotating wheel fixing sledge fixing oil cylinder group (161) to release and fix the lower end head rotating wheel fixing sledge (172) on the tunneling lower crossheading (200), using a lower end head rotating wheel fixing sledge walking oil cylinder (131) to pull the lower end head rotating wheel fixing sledge (172) to walk for one time by a distance which is an integral multiple (2-4 times) of the mining width distance, then using the lower end head rotating wheel fixing sledge fixing oil cylinder group (161) to fix the lower end head rotating wheel fixing sledge (172) in the tunneling lower crossheading (200) from the upper side, the lower side, the left side and the right side, so that the stroke of a lower end head distance adjusting oil cylinder (90) is the length which is the integral multiple (2-4 times) of the one-time mining width distance, repeating the second step, the third step, the fourth step and the fifth step to complete the mining of the whole working face, and then stopping the whole hydraulic mining equipment.
10. The water recovery process of coiled tubing water recovery equipment for an undeniable protected coal seam as claimed in claim 9, wherein: the oil cylinders of the continuous oil pipe working system fixing sledge fixing oil cylinder group (20), the upper end head rotating wheel fixing sledge fixing oil cylinder group (16), the lower end head rotating wheel fixing sledge fixing oil cylinder group (161), the mining winch sledge fixing oil cylinder group (120), the upper end head distance adjusting oil cylinder (9) and the lower end head distance adjusting oil cylinder (90) are manually controlled;
the distance of one-time width mining is 0.25-0.6 m, LMiningFor a practical length of water production, LMiningN is the number of times of water mining required for completing the length of the whole working face when water mining is carried out by using the primary water mining length L, and n is the length of the working face/L]；
And when the thickness of the coal bed is less than or equal to 0.5 m, the coal bed is mined for the first time, when the thickness of the coal bed is more than 0.5 m and less than 0.8 m, the coal bed is mined for the second time, and the first mining layer is the upper half part of the coal bed.
CN202110852272.4A 2021-07-27 2021-07-27 Coiled tubing water production equipment and technology for non-thin-layer-capable-of-production-protection coal bed Active CN113464138B (en)

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